allen



(No Model.) 2 Sheets-Sheet 1.

C. P. ALLEN.

PUMP.

No. 453,781. Patented June 9,1891.

1/ 01 1 1400000 gmouwtoz 1% W/ Mxw 1% flrt' owela nu: NORRIS warms co. woxcmn'no. \nsmnn'mn, o..c.

(No Model.) 2 Sheets-Sheat 2.

O. F. ALLEN.

PUMP.

No. 453,781. Patented June 9,1891.

j YATES PATENT OFFICE.

CHARLES F. ALLEN, OF DEMING, TERRITORY OF NEW MEXICO.

PUMP.

SPECIFICATION forming part of Letters Patent No. 453,781, dated June 9, 1891. Application filed October 171 1890. Serial No. 368,388. (No model.)

To all whom, it may concern:

Be it known that 1, CHARLES F. ALLEN, a citizen of the United States, residing at Deming, in the county of Grant and Territory of to others skilled in the art to which it apper.

tains to make and use the same.

The special object of the invention is to improve the operative mechanism of that class of pumps wherein two valved plungers 15 are employed, the lower one receiving the "water from the Well and the upper one letting the water pass therethrough and carrying it up to the discharge-spout. One cylinder only is used, the upper plunger being made to surzo'u'ound and slide upon-the piston-rod of the lower plunger.

The invention will first be described in connection with the drawings, and then pointed out in the claims.

Figure 1 of the drawings is a plan View of my pump mechanism; Fig. 2, a longitudinal Vertical section on dotted line a' :c of Fig. 1, and Fig. 3 a vertical crosssection on dotted line y 2 of Fig. 1.

In the drawings, A represents a pump-cylinder, in which work two plungers B B by means of the rods b b, to which the operative mechanism is attached. The upper plun ger B is moved by the rod b and slides upon 3 5 the rod 1), which passes through its center.

On the upper end of each of the rods 1; b is attached the lower end of a' rack C, the teeth of the racks being made to face each other and mesh with the intermediate pinion D on the shaft E, so as to be moved alternately up and down. The shaft E turns in the bearings e e, and is provided at each end with a half-clutch e.

F is a shaft having the hand-crank f at its 45 outer end, the half-clutch f at its inner end,

and the intermediate spur-wheel G, the latter meshing with a correspondingspur-wheel H onthe counter-shaft I. The other end of the shaft I is connected by spur-wheels K K K with the short shaft J, carrying a halfclutch d. After the pinion D has rotated sufficiently to raise one rack C to its proper height and to depress the other to its proper depth the direction of said shaft must be reversed in order to make thenext stroke. In order to accomplish this, I makea corresponding stud c on each of the racks C. This stud as it rises strikes the front end'l of a springcatch L, which engages a projection on on the cross-bars M,while the rear ends of the catches are made fast to and under the movable bar N, whose ends are secured aboutthe halfclutch'es e c.

O O are two side springs, one on theoutside of each rack, so as to throw the clutchbar N. from one side to the other whenever an and lot a spring-catch is raised from a projection on. This is done after every stroke of the plunger-s, the spring 0 bearing against a stud n on the bar. The shaftE of the pinion D is therefore alternately carried by the opposite clutches and in opposite directions.

Iclaim- 1. In a pump mechanism, substantially as describedg the bar N, movable longitudinally and carryinghalf-elutches e e on the pinionshaft E, and the fixed shafts F J, carrying similar half-clutches f d, in combination with two rack-bars O 0, having the springs O, which throw said shaft alternately in connection with the half-clutches f cl to reverse its direction at each stroke of pump-plungers. as set forth.

2. In a pump mechanism, the combination of the clutch-shafts E F J, spur-Wheels G H K K K pinion D, racks O C, having-inside studs 0 c and outside springs O O, the bar N, carrying the half-clutches-e e to the fixed half-clutches d f, and the fastening device consisting of springs L Z and cross-bars m m, all arranged substantially as and for the pur-' pose set forth.

In testimony whereof Iatfix my signature in presence of witnesses.

CHARLES F. ALLEN.

Witnesses:

A. RUPPERT, R. J. BEALL, Jr. 

